Where a measurement falls

Enter a length, and a girth if you like, to see where it falls against the pooled clinician-measured datasets for the same way of measuring. It is worked out in this page, on your device: nothing you type is stored, logged or sent.

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Legend

Clinician-measured
Self-reported
Preference or belief
Modelled trend
Condom or product
Clinical threshold
Unverified claim
Record
Receiving anatomy

Girth measured, derived from mean and SD, or a band midpoint
Girth extrapolated from length
Extrapolated beyond the data (more than three SD out)
Bold label, full-strength bar: a population average.
Muted label, faded bar: a single value, percentile, product or claim.

Sorted by length Sorted by girth Normalised to bone-pressed Every study Hide rows with extrapolated girth

Sorted by length

Every row, shortest to longest. Length is the published length; thickness is the real diameter (circumference ÷ π) on the same scale.

Length, inches; thickness to the same scale

Smallest man in a size study Herbenick 2014 · self-measured · 4 cm · bone-pressed

1.57″ long · 1.18″ around

Flaccid, 3rd percentile Veale 2015 · clinician-measured · mixed BP/NBP

2.44″ long · ~2.99″ around, extrapolated

Vagina at rest, depth Barnhart 2006 · MRI · 28 women · 6.27 cm · girth = introitus width × π

2.47″ long · 3.24″ around

Micropenis threshold Stretched length 2.5 SD below the mean (<8.5 cm) · bone-pressed

3.35″ long · ~3.39″ around, extrapolated

Flaccid, average Veale 2015 · clinician-measured · mixed BP/NBP

3.61″ long · 3.67″ around

Stretched, 3rd percentile Veale 2015 · clinician-measured · mixed BP/NBP

3.81″ long · ~3.69″ around, extrapolated

Erect, 3rd percentile Veale 2015 · clinician-measured · mixed BP/NBP

3.94″ long · 3.78″ around, derived

Smallest regional average, stretched Promodu 2007 · 301 men at a sexual-dysfunction clinic, India · 10.88 cm · not bone-pressed

4.28″ long · ~4.00″ around, extrapolated

Men seeking lengthening: most measured below this Mondaini 2002 · 25th percentile, their own nomogram · not bone-pressed

4.33″ long · ~4.04″ around, extrapolated

Smallest condom made myONE 45C · 120 mm · 45 mm nominal width

4.72″ long · 3.54″ around

What men seeking lengthening think normal is Mondaini 2002 · 67 men · mean estimate, flaccid · 12 cm

4.72″ long · ~4.31″ around, extrapolated

Flaccid, 97th percentile Veale 2015 · clinician-measured · mixed BP/NBP

4.77″ long · ~4.34″ around, extrapolated

Erect, average — non-bone-pressed calcSD pooled · 2,766 men · 12.13 cm · not bone-pressed

4.78″ long · 4.59″ around

Stretched, average — not bone-pressed calcSD pooled · 8,059 men · 12.20 cm · not bone-pressed

4.80″ long · ~4.35″ around, extrapolated

Modelled world average, 1992 Belladelli 2023 · 12.27 cm · mixed BP/NBP

4.83″ long · ~4.37″ around, extrapolated

Men's health clinic: men seen for infertility Slade 2021 · stretched · 161 men · bone-pressed

4.84″ long · ~4.38″ around, extrapolated

Typical vibrator or dildo listed for sale Herbenick 2015 · 8 retail sites · midpoint of reported band

5.00″ long · 4.50″ around, band midpoint

Erect by injection — Wessells 1996 80 men · San Francisco · 12.89 cm · not bone-pressed

5.07″ long · ~4.53″ around, extrapolated

Surgical ceiling for girth Isaacson 2017 · 15.1 cm · length is the population average

5.17″ long · 5.94″ around

Erect, average Veale 2015 · 692 men (erect), clinician-measured · mixed BP/NBP

5.17″ long · 4.59″ around

Stretched, average Veale 2015 · clinician-measured · mixed BP/NBP

5.21″ long · ~4.62″ around, extrapolated

Men's health clinic: men seen for anything else Slade 2021 · stretched · 503 men · bone-pressed

5.28″ long · ~4.67″ around, extrapolated

Erect by injection — Chen 2000 55 urology patients · Tel Aviv · PGE1 injection (ED work-up, per calcSD) · 13.60 cm · not checked against the original source · bone-pressed

5.35″ long · 4.29″ around

Stretched, average — bone-pressed calcSD pooled · 17,150 men · 13.89 cm · bone-pressed

5.47″ long · ~4.79″ around, extrapolated

Pooled world average, all years Belladelli 2023 · 20 studies (75-study review) · 13.93 cm · mixed BP/NBP

5.48″ long · ~4.80″ around, extrapolated

Erect, average — bone-pressed calcSD pooled · 3,138 men · 14.00 cm · bone-pressed

5.51″ long · 4.59″ around

Self-measured average Herbenick 2014 · 1,661 men · bone-pressed

5.57″ long · 4.81″ around

Erect by injection — Habous 2015 778 urology outpatients · Saudi Arabia · injection · includes men with ED (per calcSD) · 14.34 cm · bone-pressed

5.65″ long · 4.53″ around

Largest regional average, stretched Mostafaei 2025 · Americas subgroup · 14.47 cm · mixed BP/NBP

5.70″ long · ~4.94″ around, extrapolated

What women guess the average is Prause 2015 · 69 women · from the raw dataset

5.76″ long · 4.50″ around

LifeStyles condom study 2001 · 300 men measured by nurses at spring-break events · bone-pressed

5.88″ long · 4.97″ around

Erect by injection — Salama 2015 105 potent controls · Egypt · injection · 15.04 cm · bone-pressed

5.92″ long · 4.69″ around

Modelled world average, 2021 Belladelli 2023 · 15.23 cm · mixed BP/NBP

6.00″ long · ~5.14″ around, extrapolated

Stretched, Western average — bone-pressed calcSD pooled · 3,767 men · 15.45 cm · includes Pereira, Solé, Barboza · bone-pressed

6.08″ long · ~5.20″ around, extrapolated

Straight men, self-reported Bogaert & Hershberger 1999 · 4,187 men · Kinsey archive · not checked against the original source · convention not stated

6.14″ long · 4.80″ around

Kinsey average Jamison & Gebhard 1988 · 2,770 men, mailed in · not checked against the original source · convention not stated

6.21″ long · 4.85″ around

Preferred, long-term partner Prause 2015 · 75 women choosing 3D models

6.30″ long · 4.80″ around

Erect, 97th percentile Veale 2015 · clinician-measured · mixed BP/NBP

6.39″ long · 5.40″ around, derived

Preferred, one-time partner Prause 2015 · 75 women choosing 3D models

6.40″ long · 5.00″ around

Gay men, self-reported Bogaert & Hershberger 1999 · 935 men · Kinsey archive · not checked against the original source · convention not stated

6.46″ long · 4.95″ around

Best-selling realistic dildo Isaacson 2017 · bestsellers across 6 US retailers

6.57″ long · 5.00″ around

Stretched, 97th percentile Veale 2015 · clinician-measured · mixed BP/NBP

6.61″ long · ~5.55″ around, extrapolated

Average condom 180 mm · 53 mm nominal width

7.09″ long · 4.17″ around

r/BigDickProblems members 1,383 self-reports from a self-selected online community · bone-pressed

7.28″ long · 5.60″ around

Smallest mass-market condom Sagami Xtreme Cobra · 190 mm · 44 mm base width (head 53 mm) · not checked against the original source

7.48″ long · 3.46″ around

Trojan Magnum 180-200 mm (midpoint) · 55 mm nominal width

7.48″ long · 4.33″ around

Trojan Magnum XL 180-200 mm (midpoint) · 58 mm base, 63 mm mid-body · Trojan's largest

7.48″ long · 4.57″ around

Largest condom made myONE 64M · 237 mm · 64 mm nominal width · wider stock condoms exist (72 mm)

9.33″ long · 5.04″ around

Largest man in a size study Herbenick 2014 · self-measured · 26 cm · bone-pressed

10.24″ long · 7.48″ around

Jonah Falcon's claim Self-reported since the 1990s · never checked · convention not stated

13.50″ long · ~10.11″ around, extrapolated beyond the data

Matt Barr: claimed clinical measurement (unpublished) 37 cm, 21.5 cm girth · claimant's account of a 2024 injection-assisted measurement · no published report · convention not stated

14.57″ long · 8.46″ around

Sorted by girth

The same rows, thinnest to thickest. Each value leads with girth and gives the row's place in the length order, so the reordering is easy to follow.

Length, inches; thickness to the same scale

Smallest man in a size study Herbenick 2014 · self-measured · 4 cm · bone-pressed

1.18″ around · 1.57″ long · #1 of 51 by length

Flaccid, 3rd percentile Veale 2015 · clinician-measured · mixed BP/NBP

~2.99″ around, extrapolated · 2.44″ long · #2 of 51 by length

Vagina at rest, depth Barnhart 2006 · MRI · 28 women · 6.27 cm · girth = introitus width × π

3.24″ around · 2.47″ long · #3 of 51 by length

Micropenis threshold Stretched length 2.5 SD below the mean (<8.5 cm) · bone-pressed

~3.39″ around, extrapolated · 3.35″ long · #4 of 51 by length

Smallest mass-market condom Sagami Xtreme Cobra · 190 mm · 44 mm base width (head 53 mm) · not checked against the original source

3.46″ around · 7.48″ long · #45 of 51 by length

Smallest condom made myONE 45C · 120 mm · 45 mm nominal width

3.54″ around · 4.72″ long · #10 of 51 by length

Flaccid, average Veale 2015 · clinician-measured · mixed BP/NBP

3.67″ around · 3.61″ long · #5 of 51 by length

Stretched, 3rd percentile Veale 2015 · clinician-measured · mixed BP/NBP

~3.69″ around, extrapolated · 3.81″ long · #6 of 51 by length

Erect, 3rd percentile Veale 2015 · clinician-measured · mixed BP/NBP

3.78″ around, derived · 3.94″ long · #7 of 51 by length

Smallest regional average, stretched Promodu 2007 · 301 men at a sexual-dysfunction clinic, India · 10.88 cm · not bone-pressed

~4.00″ around, extrapolated · 4.28″ long · #8 of 51 by length

Men seeking lengthening: most measured below this Mondaini 2002 · 25th percentile, their own nomogram · not bone-pressed

~4.04″ around, extrapolated · 4.33″ long · #9 of 51 by length

Average condom 180 mm · 53 mm nominal width

4.17″ around · 7.09″ long · #43 of 51 by length

Erect by injection — Chen 2000 55 urology patients · Tel Aviv · PGE1 injection (ED work-up, per calcSD) · 13.60 cm · not checked against the original source · bone-pressed

4.29″ around · 5.35″ long · #23 of 51 by length

What men seeking lengthening think normal is Mondaini 2002 · 67 men · mean estimate, flaccid · 12 cm

~4.31″ around, extrapolated · 4.72″ long · #11 of 51 by length

Trojan Magnum 180-200 mm (midpoint) · 55 mm nominal width

4.33″ around · 7.48″ long · #46 of 51 by length

Flaccid, 97th percentile Veale 2015 · clinician-measured · mixed BP/NBP

~4.34″ around, extrapolated · 4.77″ long · #12 of 51 by length

Stretched, average — not bone-pressed calcSD pooled · 8,059 men · 12.20 cm · not bone-pressed

~4.35″ around, extrapolated · 4.80″ long · #14 of 51 by length

Modelled world average, 1992 Belladelli 2023 · 12.27 cm · mixed BP/NBP

~4.37″ around, extrapolated · 4.83″ long · #15 of 51 by length

Men's health clinic: men seen for infertility Slade 2021 · stretched · 161 men · bone-pressed

~4.38″ around, extrapolated · 4.84″ long · #16 of 51 by length

Typical vibrator or dildo listed for sale Herbenick 2015 · 8 retail sites · midpoint of reported band

4.50″ around, band midpoint · 5.00″ long · #17 of 51 by length

What women guess the average is Prause 2015 · 69 women · from the raw dataset

4.50″ around · 5.76″ long · #30 of 51 by length

Erect by injection — Wessells 1996 80 men · San Francisco · 12.89 cm · not bone-pressed

~4.53″ around, extrapolated · 5.07″ long · #18 of 51 by length

Erect by injection — Habous 2015 778 urology outpatients · Saudi Arabia · injection · includes men with ED (per calcSD) · 14.34 cm · bone-pressed

4.53″ around · 5.65″ long · #28 of 51 by length

Trojan Magnum XL 180-200 mm (midpoint) · 58 mm base, 63 mm mid-body · Trojan's largest

4.57″ around · 7.48″ long · #47 of 51 by length

Erect, average — non-bone-pressed calcSD pooled · 2,766 men · 12.13 cm · not bone-pressed

4.59″ around · 4.78″ long · #13 of 51 by length

Erect, average Veale 2015 · 692 men (erect), clinician-measured · mixed BP/NBP

4.59″ around · 5.17″ long · #20 of 51 by length

Erect, average — bone-pressed calcSD pooled · 3,138 men · 14.00 cm · bone-pressed

4.59″ around · 5.51″ long · #26 of 51 by length

Stretched, average Veale 2015 · clinician-measured · mixed BP/NBP

~4.62″ around, extrapolated · 5.21″ long · #21 of 51 by length

Men's health clinic: men seen for anything else Slade 2021 · stretched · 503 men · bone-pressed

~4.67″ around, extrapolated · 5.28″ long · #22 of 51 by length

Erect by injection — Salama 2015 105 potent controls · Egypt · injection · 15.04 cm · bone-pressed

4.69″ around · 5.92″ long · #32 of 51 by length

Stretched, average — bone-pressed calcSD pooled · 17,150 men · 13.89 cm · bone-pressed

~4.79″ around, extrapolated · 5.47″ long · #24 of 51 by length

Pooled world average, all years Belladelli 2023 · 20 studies (75-study review) · 13.93 cm · mixed BP/NBP

~4.80″ around, extrapolated · 5.48″ long · #25 of 51 by length

Straight men, self-reported Bogaert & Hershberger 1999 · 4,187 men · Kinsey archive · not checked against the original source · convention not stated

4.80″ around · 6.14″ long · #35 of 51 by length

Preferred, long-term partner Prause 2015 · 75 women choosing 3D models

4.80″ around · 6.30″ long · #37 of 51 by length

Self-measured average Herbenick 2014 · 1,661 men · bone-pressed

4.81″ around · 5.57″ long · #27 of 51 by length

Kinsey average Jamison & Gebhard 1988 · 2,770 men, mailed in · not checked against the original source · convention not stated

4.85″ around · 6.21″ long · #36 of 51 by length

Largest regional average, stretched Mostafaei 2025 · Americas subgroup · 14.47 cm · mixed BP/NBP

~4.94″ around, extrapolated · 5.70″ long · #29 of 51 by length

Gay men, self-reported Bogaert & Hershberger 1999 · 935 men · Kinsey archive · not checked against the original source · convention not stated

4.95″ around · 6.46″ long · #40 of 51 by length

LifeStyles condom study 2001 · 300 men measured by nurses at spring-break events · bone-pressed

4.97″ around · 5.88″ long · #31 of 51 by length

Preferred, one-time partner Prause 2015 · 75 women choosing 3D models

5.00″ around · 6.40″ long · #39 of 51 by length

Best-selling realistic dildo Isaacson 2017 · bestsellers across 6 US retailers

5.00″ around · 6.57″ long · #41 of 51 by length

Largest condom made myONE 64M · 237 mm · 64 mm nominal width · wider stock condoms exist (72 mm)

5.04″ around · 9.33″ long · #48 of 51 by length

Modelled world average, 2021 Belladelli 2023 · 15.23 cm · mixed BP/NBP

~5.14″ around, extrapolated · 6.00″ long · #33 of 51 by length

Stretched, Western average — bone-pressed calcSD pooled · 3,767 men · 15.45 cm · includes Pereira, Solé, Barboza · bone-pressed

~5.20″ around, extrapolated · 6.08″ long · #34 of 51 by length

Erect, 97th percentile Veale 2015 · clinician-measured · mixed BP/NBP

5.40″ around, derived · 6.39″ long · #38 of 51 by length

Stretched, 97th percentile Veale 2015 · clinician-measured · mixed BP/NBP

~5.55″ around, extrapolated · 6.61″ long · #42 of 51 by length

r/BigDickProblems members 1,383 self-reports from a self-selected online community · bone-pressed

5.60″ around · 7.28″ long · #44 of 51 by length

Surgical ceiling for girth Isaacson 2017 · 15.1 cm · length is the population average

5.94″ around · 5.17″ long · #19 of 51 by length

Largest man in a size study Herbenick 2014 · self-measured · 26 cm · bone-pressed

7.48″ around · 10.24″ long · #49 of 51 by length

Matt Barr: claimed clinical measurement (unpublished) 37 cm, 21.5 cm girth · claimant's account of a 2024 injection-assisted measurement · no published report · convention not stated

8.46″ around · 14.57″ long · #51 of 51 by length

Jonah Falcon's claim Self-reported since the 1990s · never checked · convention not stated

~10.11″ around, extrapolated beyond the data · 13.50″ long · #50 of 51 by length

Normalised to bone-pressed

Only penis measurements whose convention is known. Rows measured without the bone press are moved to their bone-pressed equivalent: the study's own bone-pressed figure where it published one, otherwise the pooled gap (0.74″ erect, 0.67″ stretched, 0.22″ flaccid). A dashed tick marks the length as published. Rows that pool both conventions are drawn in outline at their published length, because they cannot be converted. Rows whose convention was never stated are left out.

Length, inches; thickness to the same scale

Smallest man in a size study Herbenick 2014 · self-measured · 4 cm · bone-pressed

1.57″ bone-pressed · 1.18″ around

Flaccid, 3rd percentile Veale 2015 · clinician-measured · mixed BP/NBP

2.44″ as published · mixed conventions, cannot be normalised

Micropenis threshold Stretched length 2.5 SD below the mean (<8.5 cm) · bone-pressed

3.35″ bone-pressed · ~3.39″ around, extrapolated

Flaccid, average Veale 2015 · clinician-measured · mixed BP/NBP

3.61″ as published · mixed conventions, cannot be normalised

Stretched, 3rd percentile Veale 2015 · clinician-measured · mixed BP/NBP

3.81″ as published · mixed conventions, cannot be normalised

Erect, 3rd percentile Veale 2015 · clinician-measured · mixed BP/NBP

3.94″ as published · mixed conventions, cannot be normalised

Flaccid, 97th percentile Veale 2015 · clinician-measured · mixed BP/NBP

4.77″ as published · mixed conventions, cannot be normalised

Modelled world average, 1992 Belladelli 2023 · 12.27 cm · mixed BP/NBP

4.83″ as published · mixed conventions, cannot be normalised

Men's health clinic: men seen for infertility Slade 2021 · stretched · 161 men · bone-pressed

4.84″ bone-pressed · ~4.38″ around, extrapolated

Smallest regional average, stretched Promodu 2007 · 301 men at a sexual-dysfunction clinic, India · 10.88 cm · not bone-pressed

4.95″ bone-pressed equivalent · published 4.28″, +0.67″ (pooled stretched offset)

Men seeking lengthening: most measured below this Mondaini 2002 · 25th percentile, their own nomogram · not bone-pressed

5.00″ bone-pressed equivalent · published 4.33″, +0.67″ (pooled stretched offset)

Erect, average Veale 2015 · 692 men (erect), clinician-measured · mixed BP/NBP

5.17″ as published · mixed conventions, cannot be normalised

Stretched, average Veale 2015 · clinician-measured · mixed BP/NBP

5.21″ as published · mixed conventions, cannot be normalised

Men's health clinic: men seen for anything else Slade 2021 · stretched · 503 men · bone-pressed

5.28″ bone-pressed · ~4.67″ around, extrapolated

Erect by injection — Chen 2000 55 urology patients · Tel Aviv · PGE1 injection (ED work-up, per calcSD) · 13.60 cm · not checked against the original source · bone-pressed

5.35″ bone-pressed · 4.29″ around

Stretched, average — not bone-pressed calcSD pooled · 8,059 men · 12.20 cm · not bone-pressed

5.47″ bone-pressed equivalent · published 4.80″, +0.67″ (pooled stretched offset)

Stretched, average — bone-pressed calcSD pooled · 17,150 men · 13.89 cm · bone-pressed

5.47″ bone-pressed · ~4.79″ around, extrapolated

Pooled world average, all years Belladelli 2023 · 20 studies (75-study review) · 13.93 cm · mixed BP/NBP

5.48″ as published · mixed conventions, cannot be normalised

Erect, average — bone-pressed calcSD pooled · 3,138 men · 14.00 cm · bone-pressed

5.51″ bone-pressed · 4.59″ around

Erect, average — non-bone-pressed calcSD pooled · 2,766 men · 12.13 cm · not bone-pressed

5.52″ bone-pressed equivalent · published 4.78″, +0.74″ (pooled erect offset)

Self-measured average Herbenick 2014 · 1,661 men · bone-pressed

5.57″ bone-pressed · 4.81″ around

Erect by injection — Habous 2015 778 urology outpatients · Saudi Arabia · injection · includes men with ED (per calcSD) · 14.34 cm · bone-pressed

5.65″ bone-pressed · 4.53″ around

Largest regional average, stretched Mostafaei 2025 · Americas subgroup · 14.47 cm · mixed BP/NBP

5.70″ as published · mixed conventions, cannot be normalised

LifeStyles condom study 2001 · 300 men measured by nurses at spring-break events · bone-pressed

5.88″ bone-pressed · 4.97″ around

Erect by injection — Salama 2015 105 potent controls · Egypt · injection · 15.04 cm · bone-pressed

5.92″ bone-pressed · 4.69″ around

Modelled world average, 2021 Belladelli 2023 · 15.23 cm · mixed BP/NBP

6.00″ as published · mixed conventions, cannot be normalised

Stretched, Western average — bone-pressed calcSD pooled · 3,767 men · 15.45 cm · includes Pereira, Solé, Barboza · bone-pressed

6.08″ bone-pressed · ~5.20″ around, extrapolated

Erect by injection — Wessells 1996 80 men · San Francisco · 12.89 cm · not bone-pressed

6.20″ bone-pressed equivalent · published 5.07″, +1.13″ (the study's own bone-pressed figure)

Erect, 97th percentile Veale 2015 · clinician-measured · mixed BP/NBP

6.39″ as published · mixed conventions, cannot be normalised

Stretched, 97th percentile Veale 2015 · clinician-measured · mixed BP/NBP

6.61″ as published · mixed conventions, cannot be normalised

r/BigDickProblems members 1,383 self-reports from a self-selected online community · bone-pressed

7.28″ bone-pressed · 5.60″ around

Largest man in a size study Herbenick 2014 · self-measured · 26 cm · bone-pressed

10.24″ bone-pressed · 7.48″ around

The normalised view as a table
Row	As published	Convention	Bone-pressed	Shift	Source	Corrections
Smallest man in a size study	1.57″	bone-pressed, erect	1.57″	none	Herbenick 2014 · self-measured · 4 cm	report an error
Flaccid, 3rd percentile	2.44″	mixed BP/NBP, flaccid	—	cannot be normalised	Veale 2015 · clinician-measured	report an error
Micropenis threshold	3.35″	bone-pressed, stretched	3.35″	none	Stretched length 2.5 SD below the mean (<8.5 cm)	report an error
Flaccid, average	3.61″	mixed BP/NBP, flaccid	—	cannot be normalised	Veale 2015 · clinician-measured	report an error
Stretched, 3rd percentile	3.81″	mixed BP/NBP, stretched	—	cannot be normalised	Veale 2015 · clinician-measured	report an error
Erect, 3rd percentile	3.94″	mixed BP/NBP, erect	—	cannot be normalised	Veale 2015 · clinician-measured	report an error
Flaccid, 97th percentile	4.77″	mixed BP/NBP, flaccid	—	cannot be normalised	Veale 2015 · clinician-measured	report an error
Modelled world average, 1992	4.83″	mixed BP/NBP, erect	—	cannot be normalised	Belladelli 2023 · 12.27 cm	report an error
Men's health clinic: men seen for infertility	4.84″	bone-pressed, stretched	4.84″	none	Slade 2021 · stretched · 161 men	report an error
Smallest regional average, stretched	4.28″	not bone-pressed, stretched	4.95″	+0.67″ (pooled stretched offset)	Promodu 2007 · 301 men at a sexual-dysfunction clinic, India · 10.88 cm	report an error
Men seeking lengthening: most measured below this	4.33″	not bone-pressed, stretched	5.00″	+0.67″ (pooled stretched offset)	Mondaini 2002 · 25th percentile, their own nomogram	report an error
Erect, average	5.17″	mixed BP/NBP, erect	—	cannot be normalised	Veale 2015 · 692 men (erect), clinician-measured	report an error
Stretched, average	5.21″	mixed BP/NBP, stretched	—	cannot be normalised	Veale 2015 · clinician-measured	report an error
Men's health clinic: men seen for anything else	5.28″	bone-pressed, stretched	5.28″	none	Slade 2021 · stretched · 503 men	report an error
Erect by injection — Chen 2000	5.35″	bone-pressed, erect	5.35″	none	55 urology patients · Tel Aviv · PGE1 injection (ED work-up, per calcSD) · 13.60 cm · not checked against the original source	report an error
Stretched, average — not bone-pressed	4.80″	not bone-pressed, stretched	5.47″	+0.67″ (pooled stretched offset)	calcSD pooled · 8,059 men · 12.20 cm	report an error
Stretched, average — bone-pressed	5.47″	bone-pressed, stretched	5.47″	none	calcSD pooled · 17,150 men · 13.89 cm	report an error
Pooled world average, all years	5.48″	mixed BP/NBP, erect	—	cannot be normalised	Belladelli 2023 · 20 studies (75-study review) · 13.93 cm	report an error
Erect, average — bone-pressed	5.51″	bone-pressed, erect	5.51″	none	calcSD pooled · 3,138 men · 14.00 cm	report an error
Erect, average — non-bone-pressed	4.78″	not bone-pressed, erect	5.52″	+0.74″ (pooled erect offset)	calcSD pooled · 2,766 men · 12.13 cm	report an error
Self-measured average	5.57″	bone-pressed, erect	5.57″	none	Herbenick 2014 · 1,661 men	report an error
Erect by injection — Habous 2015	5.65″	bone-pressed, erect	5.65″	none	778 urology outpatients · Saudi Arabia · injection · includes men with ED (per calcSD) · 14.34 cm	report an error
Largest regional average, stretched	5.70″	mixed BP/NBP, stretched	—	cannot be normalised	Mostafaei 2025 · Americas subgroup · 14.47 cm	report an error
LifeStyles condom study	5.88″	bone-pressed, erect	5.88″	none	2001 · 300 men measured by nurses at spring-break events	report an error
Erect by injection — Salama 2015	5.92″	bone-pressed, erect	5.92″	none	105 potent controls · Egypt · injection · 15.04 cm	report an error
Modelled world average, 2021	6.00″	mixed BP/NBP, erect	—	cannot be normalised	Belladelli 2023 · 15.23 cm	report an error
Stretched, Western average — bone-pressed	6.08″	bone-pressed, stretched	6.08″	none	calcSD pooled · 3,767 men · 15.45 cm · includes Pereira, Solé, Barboza	report an error
Erect by injection — Wessells 1996	5.07″	not bone-pressed, erect	6.20″	+1.13″ (the study's own bone-pressed figure)	80 men · San Francisco · 12.89 cm	report an error
Erect, 97th percentile	6.39″	mixed BP/NBP, erect	—	cannot be normalised	Veale 2015 · clinician-measured	report an error
Stretched, 97th percentile	6.61″	mixed BP/NBP, stretched	—	cannot be normalised	Veale 2015 · clinician-measured	report an error
r/BigDickProblems members	7.28″	bone-pressed, erect	7.28″	none	1,383 self-reports from a self-selected online community	report an error
Largest man in a size study	10.24″	bone-pressed, erect	10.24″	none	Herbenick 2014 · self-measured · 26 cm	report an error

Every study

One line for every dataset in calcSD's public list that publishes both a mean and a standard deviation, plus studies the site has added from the literature, marked, in four panels by measurement and convention, each sorted by mean. The dot is the study's mean. The whisker runs 2 standard deviations either side: it is a normal curve fitted to each study's own mean and SD, not observed data. Whiskers are cut off at the edges of the 3 to 9 inch axis.

Clinician-measured
Pooled aggregate
Self-reported
Erectile-dysfunction patients

Erect, bone-pressed (24 datasets)

Son 1999 Korea

4.69 ± 0.51″ (11.90 ± 1.30 cm) · n 156

Promodu et al. 2007 (Groups 1 and 3) India

5.09 ± 0.64″ (12.93 ± 1.63 cm) · n 41 · ED patients · source

Eastern Average Korea, China, India, Japan, Vietnam, Kazakhstan, Bangladesh

5.27 ± 0.54″ (13.39 ± 1.36 cm) · n 1,268 · pooled aggregate

Oshakbayev et al. 2022 Kazakhstan

5.28 ± 0.41″ (13.41 ± 1.04 cm) · n 282 · source

Yoon et al. 1998 Korea

5.28 ± 0.54″ (13.42 ± 1.38 cm) · n 150 · source

Wu & Yang 1993 China

5.32 ± 0.43″ (13.51 ± 1.08 cm) · n 104 · injection · source

Park et al. 2016 Korea

5.33 ± 0.66″ (13.53 ± 1.68 cm) · n 248 · source

Chen et al. 2000 Israel

5.35 ± 0.67″ (13.60 ± 1.70 cm) · n 55 · ED patients, injection · source

Acuña Cañas et al. 1999 Colombia

5.47 ± 0.67″ (13.90 ± 1.70 cm) · n 130 · ED patients, injection · source

Global Average Italy, Saudi Arabia, Egypt, Korea, Germany, China, Argentina, Brazil, United States, Turkey, France, Iran, Bulgaria, Austalia, Nigeria, India, Czechoslovakia, Japan, Vietnam, Portugal, Canada, Kazakhstan, Bangladesh, United Kingdom, Israel, Colombia

5.51 ± 0.66″ (14.00 ± 1.69 cm) · n 3,138 · pooled aggregate

Park et al. 1998 Korea

5.54 ± 0.59″ (14.06 ± 1.49 cm) · n 287 · source

Herbenick et al. 2014 United States

5.57 ± 1.05″ (14.15 ± 2.66 cm) · n 1,661 · self-reported · source

Habous et al. 2015 [2] Saudi Arabia, Egypt

5.63 ± 0.79″ (14.30 ± 2.00 cm) · n 201 · source

da Ros et al. 1993 Brazil

5.63 ± 0.79″ (14.31 ± 2.00 cm) · n 150 · injection · source

Habous et al. 2015 [1] Saudi Arabia

5.65 ± 0.73″ (14.34 ± 1.86 cm) · n 778 · ED patients, injection · source

Middle Eastern Average Saudi Arabia, Egypt, Turkey, Iran, Israel

5.67 ± 0.74″ (14.40 ± 1.87 cm) · n 1,399 · pooled aggregate

Habous et al. 2017

5.68 ± 0.80″ (14.43 ± 2.02 cm) · n 201 · ED patients, injection · source

Western Average Germany, Italy, Argentina, Brazil, United States, France, Bulgaria, Austalia, Czechoslovakia, Portugal, Canada, United Kingdom, Colombia

5.70 ± 0.80″ (14.48 ± 2.02 cm) · n 471 · pooled aggregate

Schneider et al. 2001 Germany

5.70 ± 0.78″ (14.48 ± 1.99 cm) · n 111 · source

LifeStyles Condoms 2001 United States, Mexico

5.88 ± 0.83″ (14.93 ± 2.10 cm) · n 300 · source

Salama 2015 [1] Egypt

5.91 ± 0.71″ (15.00 ± 1.80 cm) · n 59 · injection · source

Salama 2015 [2] Egypt

5.92 ± 0.59″ (15.04 ± 1.51 cm) · n 105 · injection · source

Wessells et al. 1996 United States

6.20 ± 1.03″ (15.74 ± 2.62 cm) · n 80 · injection · source

/r/BigDickProblems Average

7.28 ± 0.78″ (18.48 ± 1.99 cm) · n 1,383 · pooled aggregate, self-reported · source

Erect, not bone-pressed (14 datasets)

Son 1999 Korea

4.25 ± 0.51″ (10.80 ± 1.30 cm) · n 156

Zhu et al. 1990 China

4.57 ± 0.67″ (11.60 ± 1.70 cm) · n 900

Eastern Average Korea, China, India, Japan, Vietnam, Kazakhstan, Bangladesh

4.63 ± 0.61″ (11.75 ± 1.54 cm) · n 1,543 · pooled aggregate

Park et al. 1998 Korea

4.68 ± 0.52″ (11.88 ± 1.32 cm) · n 287 · source

4.78 ± 0.68″ (12.13 ± 1.72 cm) · n 2,766 · pooled aggregate

Habous et al. 2017

4.93 ± 0.78″ (12.51 ± 1.99 cm) · n 201 · ED patients, injection · source

Habous et al. 2015 [1] Saudi Arabia

4.93 ± 0.76″ (12.53 ± 1.93 cm) · n 778 · ED patients, injection · source

Middle Eastern Average Saudi Arabia, Egypt, Turkey, Iran, Israel

4.95 ± 0.74″ (12.58 ± 1.89 cm) · n 1,143 · pooled aggregate

Salama 2015 [2] Egypt

5.07 ± 0.57″ (12.88 ± 1.46 cm) · n 105 · injection · source

Western Average Germany, Italy, Argentina, Brazil, United States, France, Bulgaria, Austalia, Czechoslovakia, Portugal, Canada, United Kingdom, Colombia

5.07 ± 1.15″ (12.89 ± 2.91 cm) · n 80 · pooled aggregate

Wessells et al. 1996 United States

5.07 ± 1.15″ (12.89 ± 2.91 cm) · n 80 · injection · source

Wang & Li 1989 China

5.12 ± 0.51″ (13.00 ± 1.30 cm) · n 200 · source

Salama 2015 [1] Egypt

5.12 ± 0.67″ (13.00 ± 1.70 cm) · n 59 · injection · source

Ali & Ali 2012 Saudi Arabia

5.39 ± 0.63″ (13.70 ± 1.60 cm) · n 200 · source

Stretched, bone-pressed (28 datasets)

Kamel et al. 2009 (Group 2) Egypt

4.41 ± 0.59″ (11.20 ± 1.50 cm) · n 78 · ED patients, injection · source

Habous et al. 2017

4.56 ± 0.65″ (11.57 ± 1.65 cm) · n 201 · ED patients, injection · source

Choi et al. 2011 Korea

4.61 ± 0.75″ (11.70 ± 1.90 cm) · n 144 · source

Habous et al. 2015 [2] Saudi Arabia, Egypt

4.61 ± 0.63″ (11.70 ± 1.60 cm) · n 2,001 · source

Hwnag et al. 2005 (Group 2) Korea

4.61 ± 0.71″ (11.71 ± 1.81 cm) · n 568 · source

Chen et al. 2000 Israel

4.92 ± 0.55″ (12.50 ± 1.40 cm) · n 55 · ED patients, injection · source

Kamel et al. 2009 (Group 1) Egypt

5.08 ± 0.75″ (12.90 ± 1.90 cm) · n 949 · source

Middle Eastern Average Saudi Arabia, Egypt, Turkey, Iran, Israel

5.16 ± 0.62″ (13.11 ± 1.57 cm) · n 7,610 · pooled aggregate

Wu et al. 1994 China

5.28 ± 0.44″ (13.41 ± 1.13 cm) · n 1,449 · source

Acuña Cañas et al. 1999 Colombia

5.35 ± 0.63″ (13.60 ± 1.60 cm) · n 130 · ED patients, injection · source

Wu & Yang 1993 China

5.44 ± 0.45″ (13.81 ± 1.15 cm) · n 104 · injection · source

Shalaby et al. 2014 Egypt

5.45 ± 0.53″ (13.84 ± 1.35 cm) · n 2,000 · source

5.47 ± 0.63″ (13.89 ± 1.60 cm) · n 17,150 · pooled aggregate

Wu et al. 1990 China

5.47 ± 0.44″ (13.90 ± 1.13 cm) · n 109 · source

Eastern Average Korea, China, India, Japan, Vietnam, Kazakhstan, Bangladesh

5.47 ± 0.54″ (13.91 ± 1.37 cm) · n 5,676 · pooled aggregate

Soylemez et al. 2011 Turkey

5.50 ± 0.62″ (13.98 ± 1.58 cm) · n 2,276 · source

Takure 2021 Nigeria

5.55 ± 0.83″ (14.10 ± 2.10 cm) · n 97 · source

Khan et al. 2012 United Kingdom

5.63 ± 0.66″ (14.30 ± 1.68 cm) · n 609 · source

Gabrich et al. 2007 Brazil

5.71 ± 0.63″ (14.50 ± 1.60 cm) · n 84 · source

Nguyen et al. 2021 (Group 1) Vietnam

5.75 ± 0.55″ (14.60 ± 1.39 cm) · n 3,302 · source

Yuruk et al. 2015 Turkey

5.75 ± 0.94″ (14.61 ± 2.40 cm) · n 50 · source

Stewart et al. 2009 Austalia

5.91 ± 0.67″ (15.00 ± 1.70 cm) · n 224 · source

Pereira 2004 Portugal

5.96 ± 0.83″ (15.14 ± 2.12 cm) · n 498 · source

Solé et al. 2022 Argentina

5.98 ± 0.87″ (15.20 ± 2.20 cm) · n 800 · source

Western Average Germany, Italy, Argentina, Brazil, United States, France, Bulgaria, Austalia, Czechoslovakia, Portugal, Canada, United Kingdom, Colombia

6.08 ± 0.78″ (15.45 ± 1.99 cm) · n 3,767 · pooled aggregate

Vasconcelos et al. 2012 Brazil

6.30 ± 0.75″ (16.00 ± 1.90 cm) · n 67 · source

Barboza et al. 2018 Brazil

6.32 ± 0.65″ (16.06 ± 1.64 cm) · n 450 · source

Bondil et al. 1992 France

6.59 ± 0.90″ (16.74 ± 2.29 cm) · n 905 · source

Stretched, not bone-pressed (21 datasets)

Spyropoulos et al. 2005 Greece

3.59 ± 0.46″ (9.12 ± 1.18 cm) · n 11 · source

Habous et al. 2017

3.77 ± 0.65″ (9.58 ± 1.64 cm) · n 201 · ED patients, injection · source

Son 1999 Korea

3.78 ± 0.47″ (9.60 ± 1.20 cm) · n 156

Son et al. 2003 Korea

3.86 ± 0.31″ (9.80 ± 0.80 cm) · n 123 · source

Promodu et al. 2007 (Groups 1 and 3) India

4.28 ± 0.56″ (10.88 ± 1.42 cm) · n 301 · ED patients · source

Mallik et al. 2021 Bangladesh

4.41 ± 0.47″ (11.21 ± 1.20 cm) · n 300 · source

Eastern Average Korea, China, India, Japan, Vietnam, Kazakhstan, Bangladesh

4.48 ± 0.54″ (11.37 ± 1.38 cm) · n 1,700 · pooled aggregate

Mehraban et al. 2006 Iran

4.56 ± 0.56″ (11.58 ± 1.42 cm) · n 1,500 · source

Kadono et al. 2018 Japan

4.61 ± 0.55″ (11.72 ± 1.39 cm) · n 102 · source

Eisenberg et al. 2011 (Control) United States

4.70 ± 0.89″ (11.95 ± 2.27 cm) · n 74 · source

4.80 ± 0.75″ (12.20 ± 1.90 cm) · n 8,059 · pooled aggregate

Motofumi et al. 2012 Japan

4.81 ± 0.68″ (12.22 ± 1.72 cm) · n 431 · source

Park et al. 1998 Korea

4.84 ± 0.52″ (12.30 ± 1.33 cm) · n 287 · source

Middle Eastern Average Saudi Arabia, Egypt, Turkey, Iran, Israel

4.85 ± 0.59″ (12.33 ± 1.49 cm) · n 2,922 · pooled aggregate

Ponchietti et al. 2001 Italy

4.92 ± 0.98″ (12.50 ± 2.50 cm) · n 3,300 · source

Western Average Germany, Italy, Argentina, Brazil, United States, France, Bulgaria, Austalia, Czechoslovakia, Portugal, Canada, United Kingdom, Colombia

4.92 ± 0.98″ (12.51 ± 2.50 cm) · n 3,437 · pooled aggregate

Eisenberg et al. 2012 (OA) United States

4.94 ± 0.80″ (12.54 ± 2.03 cm) · n 69 · source

Hosseini et al. 2007 (Control) Iran

5.12 ± 0.41″ (13.01 ± 1.04 cm) · n 42 · source

Savoie et al. 2003 United States

5.31 ± 1.02″ (13.50 ± 2.60 cm) · n 63 · source

Aslan et al. 2011 Turkey

5.39 ± 0.63″ (13.70 ± 1.60 cm) · n 1,132 · source

Haliloglu et al. 2007 Turkey

5.59 ± 0.43″ (14.20 ± 1.10 cm) · n 47 · source

If this is worrying you

Most men who worry about their size are well within the normal range — in one clinic study, every man who asked for lengthening surgery measured normal, and most changed their minds once they saw where they actually fell. If concern about your body is affecting your life or relationships, a GP, a urologist, or a therapist familiar with body-image concerns can help. It's a common worry and a very treatable one.

Before reading much into it

Whether the ruler was pressed to the bone, whether the penis was stretched or erect, and whether a clinician or the man himself held the ruler explain more of the disagreement between figures than anatomy does.

Length and girth are only weakly correlated in real men, and girth varies less than length in absolute terms.

Each dataset is read as a normal curve. The tails behave; it is the means and the conventions that differ.

How the calculator works is on the methods page.

Many pooled figures and the every-study view draw on calcSD, a community-maintained compilation of published measurement studies, and on its public dataset API.

Where a measurement falls

Result

Dataset by dataset

Legend

Sorted by length

Sorted by girth

Normalised to bone-pressed

Every study

Erect, bone-pressed (24 datasets)

Erect, not bone-pressed (14 datasets)

Stretched, bone-pressed (28 datasets)

Stretched, not bone-pressed (21 datasets)

If this is worrying you

Before reading much into it